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Finding the Fourth Proportional to 66,700.67, 100,018.13 and 23,419.94

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Solution

The fourth proportional to 66,700.67, 100,018.13 and 23,419.94 is: 35,118.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,700.67 : 100,018.13 = 23,419.94 : x
  2. Step 2: Convert to fraction form
    66,700.67/100,018.13 = 23,419.94/x
  3. Step 3: Cross multiply
    66,700.67x = 100,018.13 × 23,419.94
  4. Step 4: Simplify right side
    66,700.67x = 2,342,417,986.32
  5. Step 5: Solve for x
    x = 2,342,417,986.32/66,700.67
  6. Step 6: Final answer
    x = 35,118.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.